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path: root/utils/TableGen/CodeGenDAGPatterns.cpp
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2012-10-25Don't return false when the function's return type is a pointer.Kaelyn Uhrain
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166719 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-25Remove exception handling usage from tblgen.Joerg Sonnenberger
Most places can use PrintFatalError as the unwinding mechanism was not used for anything other than printing the error. The single exception was CodeGenDAGPatterns.cpp, where intermediate errors during type resolution were ignored to simplify incremental platform development. This use is replaced by an error flag in TreePattern and bailout earlier in various places if it is set. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166712 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-10tblgen: Use semantically correct RTTI functions.Sean Silva
Also, some minor cleanup. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165647 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-10tblgen: Mechanically move dynamic_cast<> to dyn_cast<>.Sean Silva
Some of these dyn_cast<>'s would be better phrased as isa<> or cast<>. That will happen in a future patch. There are also two dyn_cast_or_null<>'s slipped in instead of dyn_cast<>'s, since they were causing crashes with just dyn_cast<>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165646 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-19Soften the pattern-can-never-match error in TableGen into a warning. This ↵Owen Anderson
pattern can be very useful in cases where you want to define a multiclass that covers both commutative and non-commutative operators (say, add and sub). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164256 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-19Refactor Record* by-ID comparator to Record.hSean Silva
This is a generally useful utility; there's no reason to have it hidden in CodeGenDAGPatterns.cpp. Also, rename it to fit the other comparators in Record.h Review by Jakob. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164189 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-11Improve tblgen code cleanliness: create an unknown_class, from which the ↵Owen Anderson
unknown def inherits. Make tblgen check for that class, rather than checking for the def itself. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163664 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-06Tablegen: Add OperandWithDefaultOps Operand typeTom Stellard
This Operand type takes a default argument, and is initialized to this value if it does not appear in a patter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163315 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-28Check all patterns for missing instruction flags.Jakob Stoklund Olesen
Both single-instruction and multi-instruction patterns can be checked for missing mayLoad / mayStore, and hasSideEffects flags. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162734 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24Fix integer undefined behavior due to signed left shift overflow in LLVM.Richard Smith
Reviewed offline by chandlerc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162623 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24Infer instruction properties from single-instruction patterns.Jakob Stoklund Olesen
Previously, instructions without a primary patterns wouldn't get their properties inferred. Now, we use all single-instruction patterns for inference, including 'def : Pat<>' instances. This causes a lot of instruction flags to change. - Many instructions no longer have the UnmodeledSideEffects flag because their flags are now inferred from a pattern. - Instructions with intrinsics will get a mayStore flag if they already have UnmodeledSideEffects and a mayLoad flag if they already have mayStore. This is because intrinsics properties are linear. - Instructions with atomic_load patterns get a mayStore flag because atomic loads can't be reordered. The correct workaround is to create pseudo-instructions instead of using normal loads. PR13693. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162614 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24Stop inferring isVariadic from instruction patterns.Jakob Stoklund Olesen
Instructions are now only marked as variadic if they use variable_ops in their ins list. A variadic SDNode is typically used for call nodes that have the call arguments as operands. A variadic MachineInstr can actually encode a variable number of operands, for example ARM's stm/ldm instructions. A call instruction does not have to be variadic. The call argument registers are added as implicit operands. This change remove the MCID::Variadic flags from most call and return instructions, allowing us to better verify their operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162599 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24Verify explicit instruction properties when they can be inferred.Jakob Stoklund Olesen
It is now allowed to explicitly set hasSideEffects, mayStore, and mayLoad on instructions with patterns. Verify that the patterns are consistent with the explicit flags. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162569 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-24Heed guessInstructionProperties, and stop warning on redundant flags.Jakob Stoklund Olesen
Emit TableGen errors if guessInstructionProperties is 0 and instruction properties can't be inferred from patterns. Allow explicit instruction properties even when they can be inferred. This patch doesn't change the TableGen output. Redundant properties are not yet verified because the tree has errors. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@162516 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-17TableGen: Pattern<> references to null_frag are a nop.Jim Grosbach
A standalone pattern defined in a multiclass expansion should handle null_frag references just like patterns on instructions. Follow-up to r160333. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160384 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-17TableGen: Allow conditional instruction pattern in multiclass.Jim Grosbach
Define a 'null_frag' SDPatternOperator node, which if referenced in an instruction Pattern, results in the pattern being collapsed to be as-if '[]' had been specified instead. This allows supporting a multiclass definition where some instaniations have ISel patterns associated and others do not. For example, multiclass myMulti<RegisterClass rc, SDPatternOperator OpNode = null_frag> { def _x : myI<(outs rc:), (ins rc:), []>; def _r : myI<(outs rc:), (ins rc:), [(set rc:, (OpNode rc:))]>; } defm foo : myMulti<GRa, not>; defm bar : myMulti<GRb>; git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@160333 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-18tblgen: remove duplicated newlines.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155038 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-18Tidy up. No need for a Twine here, as it's just constants.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155026 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-18Clean up warning text. Remove extraneous prefix.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155015 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-18TableGen use PrintWarning rather than fprintf(stderr,...) for warnings.Jim Grosbach
That way we get source line number information from the diagnostics. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155014 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-23Include cstdio in a few place that depended on getting it transitively ↵Benjamin Kramer
through StringExtras.h git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153328 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05Convert assert(0) to llvm_unreachableCraig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149814 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-17Provide better messages in llvm_unreachable.David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148293 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-17Remove unreachable code. (replace with llvm_unreachable to help GCC where ↵David Blaikie
necessary) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148284 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-13Delete CodeInit and CodeRecTy from TableGen.Jakob Stoklund Olesen
The code type was always identical to a string anyway. Now it is simply a synonym. The code literal syntax [{...}] is still valid. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148092 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-10Remove unnecessary default cases in switches that cover all enum values.David Blaikie
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147855 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-14Ban rematerializable instructions with side effects.Jakob Stoklund Olesen
TableGen infers unmodeled side effects on instructions without a pattern. Fix some instruction definitions where that was overlooked. Also raise an error if a rematerializable instruction has unmodeled side effects. That doen't make any sense. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141929 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-01Move TableGen's parser and entry point into a libraryPeter Collingbourne
This is the first step towards splitting LLVM and Clang's tblgen executables. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140951 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-29Unconstify InitsDavid Greene
Remove const qualifiers from Init references, per Chris' request. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136531 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-29[AVX] Create Inits Via Factory MethodDavid Greene
Replace uses of new *Init with *Init::get. This hides the allocation implementation so that we can unique Inits in various ways. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136486 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-29[AVX] Constify InitsDavid Greene
Make references to Inits const everywhere. This is the final step before making them unique. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136485 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-18Intern all RecTy subclass instances to avoid duplicates.Jakob Stoklund Olesen
Make all of the RecTy constructors private, and use get() factory methods instead. Return singleton instances when it makes sense. ListTy instance pointers are stored in the element RecTy instance. BitsRecTy instance pointers, one per length, are stored in a static vector. Also unique DefInit instances. A Record has a unique DefInit which has a unique RecordRecTy instance. This saves some 200k-300k RecTy allocations when parsing ARM.td. It reduces TableGen's heap usage by almost 50%. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135399 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-11Revert r134921, 134917, 134908 and 134907. They're causing failuresEric Christopher
in multiple buildbots. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134936 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-11Use get(0 Instead of Create()David Greene
Respond to some feedback asking for a name change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134921 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-11[AVX] Make Inits FoldableDavid Greene
Manage Inits in a FoldingSet. This provides several benefits: - Memory for Inits is properly managed - Duplicate Inits are folded into Flyweights, saving memory - It enforces const-correctness, protecting against certain classes of bugs The above benefits allow Inits to be used in more contexts, which in turn provides more dynamism to TableGen. This enhanced capability will be used by the AVX code generator to a fold common patterns together. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134907 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-06Typo.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134563 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-27Add support for alternative register names, useful for instructions whose ↵Owen Anderson
operands are logically equivalent to existing registers, but happen to be printed specially. For example, an instruciton that prints d0[0] instead of s0. Patch by Jim Grosbach. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133940 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21Consolidate some TableGen diagnostic helper functions.Jim Grosbach
TableGen had diagnostic printers sprinkled about in a few places. Pull them together into a single location in Error.cpp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133568 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-17since the VT is fixed for a ImmLeaf, there is no reason to expose it to the ↵Chris Lattner
matching code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129677 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-17now that predicates have a decent abstraction layer on them, introduce a new Chris Lattner
kind of predicate: one that is specific to imm nodes. The predicate function specified here just checks an int64_t directly instead of messing around with SDNode's. The virtue of this is that it means that fastisel and other things can reason about these predicates. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129675 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-17Rework our internal representation of node predicates to expose moreChris Lattner
structure and fix some fixmes. We now have a TreePredicateFn class that handles all of the decoding of these things. This is an internal cleanup that has no impact on the code generated by tblgen. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129670 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-15- Add "Bitcast" target instruction property for instructions which performEvan Cheng
nothing more than a bitcast. - Teach tablegen to automatically infer "Bitcast" property. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127667 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-04Silence uninitialized value warnings.David Greene
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124869 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-01[AVX] Implement EnforceSmallerThan for mixed int/fp type lists. ThisDavid Greene
makes type checking for extract_subvector and insert_subvector more robust and will allow stricter typechecking of more patterns in the future. This change handles int and fp as disjoint sets so that it will enforce integer types to be smaller than the largest integer type and fp types to be smaller than the largest fp type. There is no attempt to check type sizes across the int/fp sets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124672 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-24[AVX] Add type checking support for vector/subvector type constraints.David Greene
This will be used to check patterns referencing a forthcoming INSERT_SUBVECTOR SDNode. INSERT_SUBVECTOR in turn is very useful for matching to VINSERTF128 instructions and complements the already existing EXTRACT_SUBVECTOR SDNode. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124145 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-23Flag -> Glue, the ongoing sagaChris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122513 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21Tidy up a bit. Trailing whitespace, hard tabs and 80-columns.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122337 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-13eliminate the Records global variable, patch by Garrison Venn!Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121659 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07Add source Record* reference to PatternToMatch. Allows better diagnostics.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121196 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-01factor the operand list (and related fields/operations) out of Chris Lattner
CodeGenInstruction into its own helper class. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117893 91177308-0d34-0410-b5e6-96231b3b80d8
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